Zobrazeno 1 - 10
of 7 953
pro vyhledávání: '"A, Sokal"'
We introduce some classes of increasing labeled and multilabeled trees, and we show that these trees provide combinatorial interpretations for certain Thron-type continued fractions with coefficients that are quasi-affine of period 2. Our proofs are
Externí odkaz:
http://arxiv.org/abs/2412.10214
Beyond diagonal reconfigurable intelligent surface (BD-RIS) is a new architecture for RIS where elements are interconnected to provide more wave manipulation flexibility than traditional single connected RIS, enhancing data rate and coverage. However
Externí odkaz:
http://arxiv.org/abs/2412.06683
Autor:
Benício, Kenneth, Fazal-E-Asim, Sokal, Bruno, de Almeida, André L. F., Makki, Behrooz, Fodor, Gabor, Swindlehurst, A. Lee
We study a monostatic multiple-input multiple-output sensing scenario assisted by a reconfigurable intelligent surface using tensor signal modeling. We propose a method that exploits the intrinsic multidimensional structure of the received echo signa
Externí odkaz:
http://arxiv.org/abs/2412.02778
This paper addresses the channel estimation problem for beyond diagonal reconfigurable intelligent surface (BD-RIS) from a tensor decomposition perspective. We first show that the received pilot signals can be arranged as a three-way tensor, allowing
Externí odkaz:
http://arxiv.org/abs/2407.20402
Autor:
Sokal, Alan D., Walrad, James
We give a continued-fraction characterization of Stieltjes moment sequences for which there exists a representing measure with support in $[\xi, \infty)$. The proof is elementary.
Comment: LaTeX2e, 10 pages. arXiv admin note: text overlap with a
Comment: LaTeX2e, 10 pages. arXiv admin note: text overlap with a
Externí odkaz:
http://arxiv.org/abs/2404.12131
We introduce a triangular array $\widehat{\sf L}^{(\alpha)}$ of 5-variable homogeneous polynomials that enumerate Laguerre digraphs (digraphs in which each vertex has out-degree 0 or 1 and in-degree 0 or 1) with separate weights for peaks, valleys, d
Externí odkaz:
http://arxiv.org/abs/2312.11081
Autor:
Deb, Bishal, Sokal, Alan D.
We prove the coefficientwise Hankel-total positivity of the even and odd subsequences of Schett polynomials $X_n(x,y,z)$.
Comment: LaTeX2e, 12 pages, extended abstract submitted to FPSAC 2024
Comment: LaTeX2e, 12 pages, extended abstract submitted to FPSAC 2024
Externí odkaz:
http://arxiv.org/abs/2311.11747
Autor:
Benício, Kenneth B. A., de Almeida, André L. F., Sokal, Bruno, Fazal-E-Asim, Makki, Behrooz, Fodor, Gabor
This paper proposes a tensor-based parametric modeling and estimation framework in multiple-input multiple-output (MIMO) systems assisted by intelligent reflecting surfaces (IRSs). We present two algorithms that exploit the tensor structure of the re
Externí odkaz:
http://arxiv.org/abs/2306.12309
Autor:
Deb, Bishal, Sokal, Alan D.
Publikováno v:
Electronic Journal of Combinatorics 31(2), #P2.14 (2024)
We show that very simple continued fractions can be obtained for the ordinary generating functions enumerating permutations or D-permutations with a large number of independent statistics, when each cycle is given a weight $-1$. The proof is based on
Externí odkaz:
http://arxiv.org/abs/2306.11500
Autor:
Benicio, Kenneth B. A., de Almeida, André L. F., Sokal, Bruno, Fazal-E-Asim, Makki, Behrooz, Fodor, Gábor
This letter proposes a model for symbol detection in the uplink of IRS-assisted networks in the presence of channel aging. During the first stage, we model the received pilot signal as a tensor, which serves as a basis for both estimating the channel
Externí odkaz:
http://arxiv.org/abs/2305.10499